JP2820346B2 - Tape-shaped electric wire manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a tape-shaped electric wire, and more particularly, to a method of arranging a plurality of conductive wires in parallel in a longitudinal direction between two fusible insulating plastic tapes and fusing them together. The present invention relates to an apparatus for manufacturing a tape-shaped electric wire.

[0002]

2. Description of the Related Art In recent years, with the development of electronic devices, electronic devices tend to be multifunctional and miniaturized. Therefore, high-density mounting inside the electronic device is not possible, and wiring using a conventional connector plug that requires space for wiring between the boards becomes impossible, and both sides of a plurality of conductive wires arranged in parallel in the longitudinal direction are not possible. Then, two insulating plastic tapes each having a rectangular window formed in the longitudinal direction were attached so that the windows coincided with each other, and these were fused and integrated, and a conductor exposed portion was provided at a terminal portion of the window. Thin and flexible tape-shaped electric wires have come into widespread use (Japanese Utility Model Laid-Open No. 3-644).
No. 24).

As shown in FIG. 7, a tape-shaped electric wire 25 used for such an application has conductors 1, 1,..., 1 arranged in parallel with each other at predetermined intervals, and each conductor 1 is composed of two sheets. The conductors 1 are exposed at both ends of the window while being fused and integrated by sandwiching the insulating plastic tapes 3 and 4, and a reinforcing tape 14 is provided on one surface of the exposed portion at both ends of the window.
Are joined.

As shown in FIG. 8, conventionally, in order to manufacture such a tape-shaped electric wire, a conductor 1 arranged in parallel with each other at a predetermined interval is provided with a rectangular window in a longitudinal direction. It has been considered to use iron rollers 20, 21 whose temperature has been adjusted as a device for fusing and integrating them by sandwiching them between two insulating plastic tapes 3, 4. Iron rollers 20, 21
Performs three functions of positioning, sending out, and crimping each conductor 1 and the two insulating plastic tapes 3, 4, and an adhesive 22 (between the conductors 1, 1,..., 1 necessary for manufacturing the tape-shaped electric wire. The flow gap shown in FIG. 9) could not be provided. As a result, an adhesive larger than the amount of the adhesive that can be absorbed or flowed between the conductors 1, 1,..., Enters or flows between the conductors, causing problems such as wrinkles and pitch changes in the tape-shaped electric wire.

[0005] For this reason, as shown in FIG. 10, the conductors 1 arranged at predetermined intervals in parallel with each other are sandwiched between two insulating plastic tapes 3 and 4 having rectangular windows formed in the longitudinal direction. One of the silicon rollers 28 and 29, the temperature of which has been adjusted to be integrated, is used as a driving roller, and the other is pressed against the driving roller by an air cylinder to form a driven roller, and lamination and driving are performed by surface friction between the roller and tape. The device is employed.

[0006]

However, this tape-like electric wire manufacturing apparatus has the following difficulties. Since a gap cannot be provided between the rollers 28 and 29 in order to transmit a sufficient driving power from the driven roller, the roller surface 31 is rotated and used in a crushed state.
Further, since the silicon roller has a large linear expansion coefficient, a difference in roller diameter occurs even with a small temperature difference. For this reason, the opening of the window,
Problems such as window displacement and tape meandering occur. In addition, the influence of the surface hardness unevenness of the roller surface 31 is remarkable, and the center line CL is shifted during lamination, so that the state becomes the same as when the roller diameter changes, and the peripheral speed of the roller changes.

Further, the number of cores of the conductive wire 1 can be
The power transmitted to the driven roller decreases or increases due to the take-up tension, and constant operating conditions cannot be obtained. In addition, the running of the insulating plastic tapes 3 and 4 causes imbalance between the two, which causes problems such as displacement of windows and generation of wrinkles. Moreover, the processing accuracy of the silicon roller is inferior, the driving roller and the driven roller cannot rotate at the same peripheral speed, and the driven roller is constantly delayed. The back tension is applied, and the nip pressure change due to the air cylinder pressure change causes the tape running speed to change and the pressing force to be insufficient, and the power is transmitted by the surface pressing force between the rollers and the tape The nip gap required for electric wire production cannot be obtained, so the window opens, the window shifts,
Problems such as generation of wrinkles occur.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned difficulties, and has as its object to manufacture a tape-shaped electric wire manufacturing apparatus capable of improving product performance without causing displacement or wrinkling between both plastic tapes to which a conductor is attached. Is to be provided.

[0009]

In order to achieve this object, a tape-shaped electric wire manufacturing apparatus according to the present invention comprises a plurality of conductive wires arranged in parallel in the longitudinal direction, each of which has a rectangular shape at predetermined intervals. A tape-shaped electric wire manufacturing apparatus for attaching a fusible insulating plastic tape having a window formed therein to form a continuous body of a conductor and each plastic tape, and a metal roller for temporarily fixing the conductor and each plastic tape. And a pair of primary fusing rollers spaced at a predetermined interval,
There is provided a pair of secondary fusing rollers composed of a silicon roller with a temperature adjusting mechanism for firmly fixing the temporarily fixed conductive wire and each plastic tape.

[0010]

According to this tape-shaped electric wire manufacturing apparatus, a plastic tape having rectangular windows formed at predetermined intervals sandwiching a plurality of conductors is constituted by a pair of metal rollers formed of metal rollers and spaced at a predetermined interval. Temporarily fused by the primary fusing roller,
The conductive wire temporarily fixed by the primary fusing roller and each plastic tape are fused again by a pair of secondary fusing rollers composed of a silicon roller with a temperature adjustment mechanism, and are firmly fixed with the required bonding strength for product performance Is done. For this reason, there is no displacement or wrinkles between the two plastic tapes to which the conductive wires are attached, and the product performance can be improved.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a tape-shaped electric wire manufacturing apparatus according to an embodiment of the present invention; 1 and 2, in order to manufacture the tape-shaped electric wire 25 (FIG. 7), a plurality of conductors 1, 1,.
, 1 are respectively adhered to the fusible insulating plastic tapes 3, 4 to form a tape-like continuous body 24 of the conductors 1, 1,. The apparatus for manufacturing this tape-shaped electric wire includes the conductors 1, 1,.
.., The primary fusing rollers 50 and 60 for temporarily fixing the plastic tapes 3 and 4 and the secondary fusing rollers 48 and 58 for firmly fixing the temporarily fixed conductive wires and the respective plastic tapes. Have.

In this embodiment, the primary fusing roller 5
Reference numerals 0 and 60 are spaced apart from each other at a predetermined interval, and are configured so that a temporary fixing pressure can be held between the conductor and each of the plastic tapes. The secondary fusing rollers 48 and 58 for firmly fixing the conductive wires temporarily fixed by the primary fusing rollers 50 and 60 and the respective plastic tapes are formed of a silicon roller with a temperature adjusting mechanism, and are individually driven to provide a strong The operation is performed so as to perform the fusing drive by fusion fixing and surface friction between the roller and the tape.

In FIG. 1, reference numerals 8A and 8B denote window opening means for forming rectangular windows 9, 9 at predetermined intervals in the plastic tapes 3, 4. The windowing means 8A and 8B have a function of perforating the windows 9 and 9 at predetermined intervals in the plastic tapes 3 and 4 and can be moved in synchronization with the running speed of the plastic tapes 3 and 4 by an AC servomotor. The plastic tapes 3 and 4 having the windows 9 and 9 formed at predetermined intervals are guided to primary fusing rollers 50 and 60. A plurality of conductors 1, 1,... 1 arranged in parallel in the longitudinal direction are introduced between the primary fusing rollers 50 and 60 as shown in FIG. The plastic tapes 3 and 4 are temporarily fixed and fused so that the windows 9 and 9 coincide with each other to form a tape-shaped continuous body 24. At this time, the primary fusing rollers 50 and 60 are operated in synchronization with the secondary fusing rollers 48 and 58 which also function as take-off rollers.

The tape-shaped continuous body 24 is conveyed to the reinforcing tape supply means 13, where it is placed above the window 9.
A reinforcing tape 14 having a size covering the whole is placed, and the reinforcing tape 14 is heated and fused and temporarily fixed by a press heater 15 having a heating plate 15A functioning as a reinforcing tape fusing means. Press heater 15 with heating plate 15A
Are plastic tapes 3 and 4 by AC servomotor
Can be synchronized with the traveling speed of the vehicle. The detection of the window 9 is performed by an optical sensor.

The conductors temporarily fixed and fused by the first fusion rollers 50 and 60 and the reinforcing tape 14 temporarily fixed and fused to the respective plastic tapes are firmly fixed by the second fusion rollers 48 and 58. The speed of the secondary fusing rollers 48 and 58 is controlled to keep the product speed constant. The tape-shaped continuous body 24 to which the reinforcing tape 14 has been heated and fused is cut off at both side edges as shown in the figure to form a tape-shaped continuous body 27 with cut-out ears. To the end cutter 40, where the reinforcing tape 1
The four bonded portions are divided into two parts in a direction orthogonal to the longitudinal direction, and the tape-shaped electric wire 25 (FIG. 7) is manufactured.

In the tape-shaped electric wire manufacturing apparatus configured as described above, the primary fusing rollers 50 and 60 formed of metal rollers have a small coefficient of linear expansion and can be controlled at the currently achievable control temperature (± 1 ° C.). Is also less than the change range of the roller diameter, which is a problem in product accuracy. In addition, temperature control is easy, and temperature unevenness of the roller itself is hard to occur. Further, the metal roller has a high processing accuracy, and the two rollers 50 and 60 can be operated in synchronization with each other so that each roller can be driven. Also,
Since the metal roller has no surface hardness unevenness, the center line does not shift during lamination, and the peripheral speed of the roller does not change. Since the roller accuracy can be increased, it is also possible to maintain the gap mechanically for temporary fixing and crimping required for tape-shaped electric wire manufacturing, and it is possible to individually drive, so it is possible to provide the nip gap required for the product It is possible.

Moreover, according to the two rollers 50, 60, a gap can be provided between the conductive wires 1, 1,... 1 necessary for manufacturing the tape-shaped electric wire, so that the tape-shaped electric wire can be wrinkled. There is no change in pitch. In this case, even if the bonding strength is insufficient, the problem is solved by firmly laminating by the secondary fusing rollers 48 and 58 formed by the silicon roller, and the product performance is maintained.

Further, by arranging the secondary fusing rollers 48 and 58 at the next stage of the primary fusing rollers 50 and 60, the product can be picked up by the secondary fusing rollers 48 and 58. The application rollers 50 and 60 function as dedicated rollers for alignment and temporary fusion, and can manufacture a tape-shaped electric wire that is not affected by the number of conductor cores and the pulling tension. Further, by arranging the press heater 15 provided with the heating plate 15A functioning as the reinforcing tape fusing means at the next stage of the primary fusing rollers 50 and 60, the reinforcing tape 14 is temporarily fixed at a low temperature (about 80 ° C.). Fusing is possible, and this is firmly fixed by the secondary fusing rollers 48 and 58, so that the press cycle time can be reduced and the adhesive can be prevented from flowing out to the surface of the conducting wire.

In the above example, the case where the press heater 15 having the heating plate 15A functioning as the reinforcing tape fusing means is arranged at the next stage of the temporary fusing primary fusing rollers 50 and 60 has been described. The press heater 15 can be arranged at a stage before the primary fusing rollers 50 and 60. At this time, as shown in FIG. 3, when the reinforcing tapes 14, 14 pass through the primary fusing rollers 50, 60, the primary fusing rollers 50, 60
A roller moving mechanism 5 that moves so as to open the tape and an accumulation mechanism 6 that absorbs a change in the tape running speed due to the movement of the roller can be provided. The accumulating mechanism 6 is disposed on the opposite side of the tape to the pressing accumulator rollers 46 and 56 before the primary fusing rollers 50 and 60, and on the opposite side of the tape before the pressing accumulator rollers 46 and 56. It is composed of backup rollers 44 and 54 arranged on the same side as the application rollers 50 and 60.

According to the apparatus for manufacturing a tape-shaped electric wire configured as described above, as shown in FIG.
When the roller 4 passes through the primary fusing rollers 50 and 60, the primary fusing rollers 50 and 60 are moved by the roller moving mechanism 5 with the center line CL as a fulcrum so as to open the gap S, and the roller is moved by the accumulation mechanism 6. Absorb changes in tape running speed due to movement. For this reason, even if the thickness of the reinforcing tapes 14, 14 is added to the plastic tapes 3, 4 sandwiching the plurality of conductive wires 1, 1,.
At 0 and 60, the tapes are temporarily fixed and fused, and a change in the running speed of both tapes 3 and 4 can be absorbed.

In the above example, the primary fusing roller 50,
The case where 60 is a metal roller and the secondary fusing rollers 48 and 58 are silicon rollers have been described, but both rollers may be silicon rollers. in this case,
As shown in FIG. 5, the primary fusing rollers 50 and 60 are formed of a silicon roller with a temperature adjusting mechanism, are spaced at a predetermined interval, and are configured to be able to hold a temporary fixing pressure between the conductive wire and each plastic tape. And they are operated individually.
The secondary fusing rollers 48 and 58 are constituted by silicon rollers with a temperature adjusting mechanism, and also function as take-off rollers.

In this embodiment, a plurality of conductors 1, 1
The plastic tapes 3 and 4 sandwiching 1 are temporarily fixed and fused by primary fusing rollers 50 and 60.
The conducting wire temporarily fixed at 60 and the respective plastic tapes are fused again by the secondary fusing rollers 48 and 58, and are firmly fixed at a bonding strength required for product performance. As shown in FIG. 6, the reinforcing tapes 14 and 14 are
, The primary fusing rollers 50 and 60 are spaced apart from each other at a predetermined interval capable of holding the temporary fixing pressure. Will not be.

When both rollers are constituted by silicon rollers in this way, by individually driving the silicon rollers, a gap can be opened so that the roller surface is not crushed, and there is no difference in peripheral speed between the rollers. In addition, by using the secondary fusing rollers 48 and 58 as take-off rollers, the primary fusing rollers 50 and 60 may be individually driven to control only the temporary fixing and alignment of the plastic tapes 3 and 4, and the conductor core may be used. It is possible to manufacture a tape-shaped electric wire which is not affected by the number and the pulling tension. Since the primary fusing rollers 50 and 60 are individually driven, synchronous driving is possible, and there is no rotational displacement between the two rollers, so that a high-quality tape-shaped electric wire can be manufactured. Further, when the reinforcing tapes 14 and 14 pass through the primary fusing rollers 50 and 60,
Since 0 and 60 are recessed, wrinkles are less generated even when the thicknesses are different.

[0024]

As is apparent from the above description, according to the tape-shaped electric wire manufacturing apparatus of the present invention, the primary fusing roller formed of a metal roller has a small coefficient of linear expansion and can be realized at present. Even at the control temperature (± 1 ° C), it becomes less than the change range of the roller diameter, which is a problem in product accuracy. In addition, the temperature control is easy, and the temperature unevenness of the roller itself hardly occurs.
In addition, the metal roller has good processing accuracy, can synchronize both rollers and can drive each roller, and since the metal roller has no uneven surface hardness, there is no deviation of the center line during lamination, Since the peripheral speed of the roller does not change and the accuracy of the roller can be increased, it is also possible to mechanically hold the gap for temporary fixing and crimping required for tape-shaped electric wire production, and it is possible to drive individually Therefore, it is possible to provide a nip gap necessary for the product, and with the two rollers, it is possible to provide a gap where the adhesive flows in between the conductive wires required for tape-shaped electric wire production, so that wrinkles are generated in the tape-shaped electric wire. , The change in pitch disappears. In this case, even if the adhesive strength is insufficient,
The product performance is maintained by firmly laminating with a secondary fusing roller formed by a silicon roller, and the product performance is maintained.By further arranging a secondary fusing roller at the next stage of the primary fusing roller, the product can be taken off. This can be done with a secondary fusing roller, and the primary fusing roller functions as a dedicated roller for positioning and temporary fusing, making it possible to manufacture tape-like electric wires that are not affected by the number of conductor cores and pulling tension. When a press heater having a heating plate functioning as a reinforcing tape fusing means is applied to the next stage of the primary fusing roller, the temporary fixing of the reinforcing tape at a low temperature (about 80 ° C.) is performed. It is possible to attach the wire and fix it firmly with the secondary fusing roller, so that the press cycle time can be shortened and the adhesive can be prevented from flowing out to the surface of the wire. Stick without displacement and wrinkles are not generated between the tape can be improved product performance.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a tape-shaped electric wire manufacturing apparatus according to the present invention.

FIG. 2 is an explanatory view showing a part of the apparatus for manufacturing a tape-shaped electric wire in FIG. 1;

FIG. 3 is an explanatory view showing a partially improved apparatus for manufacturing the tape-shaped electric wire in FIG. 1;

FIG. 4 is an operation explanatory view of the tape-shaped electric wire manufacturing apparatus in FIG. 3;

FIG. 5 is an explanatory view showing a partially improved tape-shaped electric wire manufacturing apparatus in FIG. 1;

6 is an operation explanatory view of the tape-shaped electric wire manufacturing apparatus in FIG.

FIG. 7 is a perspective view of a tape-shaped electric wire.

FIG. 8 is an explanatory view showing a conventional tape-shaped electric wire manufacturing apparatus.

FIG. 9 is an operation explanatory view of the tape-shaped electric wire manufacturing apparatus in FIG.

FIG. 10 is an explanatory view showing another conventional tape-shaped electric wire manufacturing apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Conducting wire 3, 4 ... Fusing adhesive plastic tape 9, 9 ... Rectangular window formed at predetermined intervals 25 ... Tape-shaped electric wire 27 ... Continuous body 50, 60 ... Metal roller Primary fusing roller 48, 58 ... Secondary fusing roller composed of a silicon roller with a temperature adjusting mechanism

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-53-66582 (JP, A) JP-A-2-152113 (JP, A) JP-A-3-64425 (JP, U) 2687 (JP, B2) JP-B 55-2686 (JP, B2) JP-B 60-22456 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) H01B 13/00 525 H01B 7/08 H01B 7/02

Claims (1)

(57) [Claims] A rectangular window (9, 9 ) is provided on both surfaces of a plurality of conductive wires (1) arranged in parallel in the longitudinal direction at predetermined intervals.
9) The fusible insulating plastic tape (3,
4) Paste, said a conductor and apparatus for manufacturing a tape-shaped wire to form a continuous body (27) with each plastic tape, predetermined intervals are configured with said conductor and the plastic tape temporarily fixed to the metal roller And a pair of primary fusing rollers (50, 60) spaced apart from each other, and a pair of silicon rollers with a temperature adjusting mechanism for firmly fixing the temporarily fixed conductive wire and each plastic tape . An apparatus for manufacturing a tape-shaped electric wire, comprising: a secondary fusing roller (48, 58).